Tandy 1000 Owner's Manual

Com mand reference
Data line monitoring
The Modem can be used to monitor a data line up to 300 bps as shown in
the figure below. To accomplish this monitoring mode, the Modem’s carrier
transmitter should be turned off and loss
of carrier condition should be
ignored.
For originate mode, input:
For answer mode, input:
AT CO S10=255 D (ENTER)
AT CO S10 = 255 A (ENTER]
300 Bps
Computer Modem
To Phone Jack
on the Modem Board
Computer
36

Tandy 1000 Specifications

General

Processor	Intel 8088
Processor Speed	4.77 MHz
RAM	128 KB (expandable to 640 KB)
Operating System	MS-DOS 2.11
Manufacturer	Tandy Corporation
Release Year	1984
Storage	Single or double 5.25" floppy disk drive (360 KB), optional hard drive
Sound	Tandy 3-voice sound
Ports	Parallel, Serial
Graphics	CGA (Color Graphics Adapter)
Graphics Modes	320x200, 640x200